diff options
Diffstat (limited to 'scripts/atomic/gen-atomic-instrumented.sh')
| -rwxr-xr-x | scripts/atomic/gen-atomic-instrumented.sh | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/scripts/atomic/gen-atomic-instrumented.sh b/scripts/atomic/gen-atomic-instrumented.sh index 68557bfbbdc5..93c949aa9e54 100755 --- a/scripts/atomic/gen-atomic-instrumented.sh +++ b/scripts/atomic/gen-atomic-instrumented.sh @@ -73,7 +73,7 @@ static __always_inline ${ret} ${atomicname}(${params}) { ${checks} - ${retstmt}arch_${atomicname}(${args}); + ${retstmt}raw_${atomicname}(${args}); } EOF @@ -105,7 +105,7 @@ EOF cat <<EOF instrument_atomic_read_write(__ai_ptr, sizeof(*__ai_ptr)); \\ instrument_read_write(__ai_oldp, sizeof(*__ai_oldp)); \\ - arch_${xchg}${order}(__ai_ptr, __ai_oldp, __VA_ARGS__); \\ + raw_${xchg}${order}(__ai_ptr, __ai_oldp, __VA_ARGS__); \\ }) EOF @@ -119,7 +119,7 @@ EOF [ -n "$kcsan_barrier" ] && printf "\t${kcsan_barrier}; \\\\\n" cat <<EOF instrument_atomic_read_write(__ai_ptr, sizeof(*__ai_ptr)); \\ - arch_${xchg}${order}(__ai_ptr, __VA_ARGS__); \\ + raw_${xchg}${order}(__ai_ptr, __VA_ARGS__); \\ }) EOF @@ -133,15 +133,10 @@ cat << EOF // DO NOT MODIFY THIS FILE DIRECTLY /* - * This file provides wrappers with KASAN instrumentation for atomic operations. - * To use this functionality an arch's atomic.h file needs to define all - * atomic operations with arch_ prefix (e.g. arch_atomic_read()) and include - * this file at the end. This file provides atomic_read() that forwards to - * arch_atomic_read() for actual atomic operation. - * Note: if an arch atomic operation is implemented by means of other atomic - * operations (e.g. atomic_read()/atomic_cmpxchg() loop), then it needs to use - * arch_ variants (i.e. arch_atomic_read()/arch_atomic_cmpxchg()) to avoid - * double instrumentation. + * This file provoides atomic operations with explicit instrumentation (e.g. + * KASAN, KCSAN), which should be used unless it is necessary to avoid + * instrumentation. Where it is necessary to aovid instrumenation, the + * raw_atomic*() operations should be used. */ #ifndef _LINUX_ATOMIC_INSTRUMENTED_H #define _LINUX_ATOMIC_INSTRUMENTED_H |